Device for transporting and transferring arc extinguish chamber

Abstract

The invention relates to a device for transporting and transferring an arc extinguish chamber, which comprises an airtight container, a bearing bracket and a transferring tool trolley, and is characterized in that the airtight container can load the arc extinguish chamber under the condition that SF6 gas is filled under positive pressure; the bearing bracket is used for loading and fixing the arc extinguish chamber, and the bearing bracket enables the arc extinguish chamber to smoothly enter and exit from the airtight container through a pulley unit; the tool transfer trolley is used in cooperation with the bearing bracket. When the tool transfer trolley is lifted, the tool transfer trolley can directly lift the bearing bracket pulled out of / fed into the airtight container. And the transfer of the arc extinguish chamber is completed after descending. According to the invention, the operation intensity can be reduced, the transportation efficiency can be improved, and repeated use can be realized; and loading, unloading and logistics operation of the arc extinguish chamber can be realized, and good operability and convenience are embodied in practice.

Description

Technical Field

[0001] This invention belongs to the field of packaging and transportation equipment technology, specifically relating to a device for transporting and transferring arc-extinguishing chambers. Background Technology

[0002] As a core support for the national energy security strategy, the stable operation of ultra-high voltage (UHV) power grids is directly related to the national economy and people's livelihood. As a core component of medium- and high-voltage electrical switchgear, arc-extinguishing chambers using SF6 gas insulation technology have become the mainstream solution in the megavolt-level UHV field and are a core precision component of power transmission and transformation systems.

[0003] This arc-extinguishing chamber is characterized by its high value, large size, heavy weight, fragile internal structure, irregular shape, stringent cleanliness requirements, and the need for both use and storage in an SF6 gas environment. Therefore, its loading, disassembly, handling, transportation, and storage all require high standards. In the power equipment manufacturing industry, the transportation and on-site installation of arc-extinguishing chambers based on SF6 gas insulation technology have long faced systemic challenges. Traditional solutions often use reusable aluminum alloy box-type containers or other disposable packaging, which have significant drawbacks. First, the arc-extinguishing chamber is relatively large, typically 4m to 6m in length. At this size, a box-shaped container with an open top surface cannot guarantee the flatness of the top surface, failing to meet effective sealing requirements and making it impossible to maintain the required SF6 gas environment for an extended period. This affects the product's insulation performance and cleanliness, creating potential hazards for subsequent power grid operation. Furthermore, disposable shielding bags are prone to breakage and leakage, typically only allowing for vacuum packaging and not positive pressure inflation. Secondly, loading and unloading operations require appropriate hoisting equipment to carry out various operations. The necessary hoisting equipment has a significant impact on the work at the power transmission and substation site, requiring all pipelines to be de-energized before construction can begin, and necessitating on-site coordination based on the actual situation. Without hoisting equipment, traditional solutions have almost no other effective adjustment methods, resulting in poor on-site adaptability, severely restricting project progress and delaying the project schedule. Furthermore, the integrated design of box-type containers is prone to uneven stress under pressure, which further reduces airtightness; there is a certain risk of failure during stacking and storage in the warehousing and transportation process, which greatly affects logistics efficiency and storage space utilization, resulting in a significant increase in logistics costs.

[0004] To address the aforementioned industry pain points, this invention proposes a device for the transportation and transfer of arc-extinguishing chambers. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings and deficiencies of the prior art by providing a device for transporting and transferring arc-extinguishing chambers. This device can reduce the intensity of work, improve transportation efficiency, and is reusable. It can realize the loading, unloading, and logistics operations of arc-extinguishing chambers, and demonstrates good operability and convenience in practice.

[0006] The technical problem solved by this invention is achieved through the following technical solution: An apparatus for transporting and transferring arc-extinguishing chambers includes an airtight container, a support bracket, and a transfer trolley. The airtight container is capable of loading the arc-extinguishing chamber under positive pressure filled with SF6 gas. The support bracket is used to load and secure the arc-extinguishing chamber, and the support bracket allows the arc-extinguishing chamber to smoothly enter and exit the airtight container via a trolley unit. The transfer trolley works in conjunction with the support bracket. When the transfer trolley is raised, it can directly lift the support bracket pulled out / into the airtight container; after lowering, the transfer of the arc-extinguishing chamber is completed.

[0007] Furthermore, the airtight container is a cylindrical container, with end flanges on both ends of the airtight container. The end flanges are connected to the end caps by fastening bolts. The end caps are equipped with inflation nozzles for filling and releasing SF6 gas. A sealing ring is provided between the end flanges and the end caps. The airtight container is made of high-strength aluminum alloy material.

[0008] Furthermore, the airtight container is equipped with the trolley unit, which includes a fixed track, a sliding wheel carriage, a track fixer, a wheel carriage fixer, and a sliding wheel carriage support frame. The track fixers are located on both sides of the inner wall of the airtight container, and the fixed track is fixedly installed on the track fixers. The sliding wheel carriage support frame is fixedly installed on the bearing bracket. The wheel carriage fixer is installed on the sliding wheel carriage support frame through the wheel carriage fixer tightening bolt and the wheel carriage fixer anti-slip nut. The sliding wheel carriage is installed on the wheel carriage fixer. The sliding wheel carriage slides along the fixed track to realize the insertion or extraction of the arc-extinguishing chamber in the airtight container.

[0009] Furthermore, a wheel buffer and vibration isolation pad is provided between the bearing bracket and the sliding wheel support frame and is fixedly connected by the wheel support frame fixing bolts.

[0010] Furthermore, the nylon wheel hub of the sliding wheel vehicle is clearance-fitted with the fixed track.

[0011] Furthermore, the support bracket is provided with a support bracket support module, which includes a metal bracket, a plastic liner, and a limiting ring. The edge of the metal bracket is open and suspended and fixed on the support bracket. The center of the metal bracket is arc-shaped to effectively support the arc-extinguishing chamber. The plastic liner is provided between the metal bracket and the arc-extinguishing chamber. The limiting rings are provided on both sides of the metal bracket. Flexible straps are inserted into the limiting rings to limit and bind the arc-extinguishing chamber.

[0012] Furthermore, the transfer trolley is located on both sides below the bearing bracket. The transfer trolley includes a transfer trolley frame, a bearing bracket support, a scissor lift mechanism, and a hydraulic jack. Casters are installed at the four corners of the transfer trolley frame. The bearing bracket support, scissor lift mechanism, and hydraulic jack are fixedly installed on the transfer trolley frame. The bearing bracket is installed on the bearing bracket support. The scissor lift mechanism controls the raising and lowering of the bearing bracket support through the hydraulic jack. When raised, the sliding wheels on the bearing bracket smoothly connect with the fixed track of the airtight container to facilitate the entry and exit of the arc-extinguishing chamber from the container. After lowering, the transfer of the arc-extinguishing chamber is completed.

[0013] Furthermore, the airtight container is surrounded by a tool rack, the top and bottom of the tool rack are provided with stacking bowl feet, the tool rack is provided with positioning diagonal supports, and the bottom of the tool rack is provided with casters.

[0014] The advantages and beneficial effects of this invention are as follows: 1. The airtight container of this invention first solves the storage and transportation requirements of SF6 gas under positive pressure, ensuring that the arc-extinguishing chamber can be stored in the same environment as the working environment, thus breaking through a long-standing technical bottleneck. Secondly, the external steel rack of the container solves the problem of reduced airtightness when the container is under pressure, and enables stacking during storage and transportation.

[0015] 2. The arc-extinguishing chamber support bracket of the present invention, through the innovative use of a rail wheel system inside the packaging container, greatly reduces the labor intensity during loading and unloading, and completely eliminates the problem that operators must enter the container to load and secure it.

[0016] 3. The lifting transfer tooling vehicle of the present invention assists the arc-extinguishing chamber bearing bracket in entering and exiting the container, enabling the loading and unloading of the arc-extinguishing chamber in the workshop and on site without the need for hoisting equipment; on the other hand, it is used for transfer and handling on the engineering site, perfectly solving the rigid requirement of minimum height for electrical pipelines in power transmission and transformation stations.

[0017] 3. This invention fully meets the transportation needs of high-voltage switchgear manufacturers for diversified product lines, and significantly improves logistics efficiency and management level while ensuring safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the connection of the airtight container of the present invention; Figure 3 This is a schematic diagram of the arc-extinguishing chamber of the present invention suspended inside an airtight container; Figure 4 This is a schematic diagram illustrating the cooperation between the fixed track and the pulley vehicle of the present invention; Figure 5 This is a schematic diagram of the sliding wheel vehicle limiting mechanism of the present invention; Figure 6 This is a schematic diagram of the load-bearing bracket structure of the present invention; Figure 7 This is a schematic diagram of the connection between the sliding wheel vehicle and the load-bearing bracket of the present invention; Figure 8 This is a schematic diagram of the load-bearing bracket support module of the present invention; Figure 9 This is a schematic diagram of the tool rack of the present invention; Figure 10 This is a schematic diagram illustrating the cooperation between the load-bearing bracket and the transfer tooling vehicle of the present invention; Figure 11 This is a schematic diagram of the transfer tooling vehicle structure of the present invention.

[0019] Explanation of reference numerals in the attached figures 1-Arc extinguishing chamber, 2-Airtight container, 3-Bearing bracket, 4-Transfer tooling cart, 5-End face flange, 6-End face cover, 7-Sealing ring, 8-Fasting bolt, 9-Inflation nozzle, 10-Fixed rail, 11-Sliding wheel cart, 12-Rail fastener, 13-Wheel cart fastener, 14-Wheel cart fastener positioning pin, 15-Bearing bracket support module, 16-Sliding wheel cart support frame, 17-Wheel cart fastener tightening bolt, 18-Wheel cart fastener anti-shift nut, 19-Wheel cart buffer vibration damping pad, 20-Wheel cart support frame fixing bolt, 21-Metal bracket, 22-Plastic pad, 23-Limiting ring, 24-Tool rack, 25-Stacking bowl foot, 26-Positioning diagonal support, 27-Cast, 28-Transfer tooling cart frame, 29-Bearing bracket support, 30-Scissor lift mechanism, 31-Hydraulic jack. Detailed Implementation

[0020] The present invention will be further described in detail below through specific embodiments. The following embodiments are merely descriptive and not limiting, and should not be used to limit the scope of protection of the present invention.

[0021] An innovative device for transporting and transferring arc-extinguishing chambers includes an airtight container 2, a support bracket 3, and a transfer cart 4. The airtight container is capable of loading the arc-extinguishing chamber 1 under positive pressure filled with SF6 gas. The support bracket is used to load and fix the arc-extinguishing chamber, and the support bracket allows the arc-extinguishing chamber to smoothly enter and exit the airtight container via a trolley unit. The transfer cart works in conjunction with the support bracket, and when the transfer cart is raised, it can directly lift the support bracket pulled out / into the airtight container; after lowering, the transfer of the arc-extinguishing chamber is completed.

[0022] 1. Airtight container The airtight container 2 is a cylindrical container. Both ends of the airtight container 2 are provided with end flanges 5. The end flanges 5 are connected to the end caps 6 by fastening bolts 8. The end caps 6 are provided with inflation nozzles 9 for filling and releasing SF6 gas. A sealing ring 7 is provided between the end flanges 5 and the end caps 6. The airtight container 2 is made of high-strength aluminum alloy material.

[0023] A rigid container capable of withstanding the positive pressure filling requirements of SF6 gas. A cylindrical container with an open end face is the most suitable structure, and the end face opening must be sealed with a rigid cap of the same material. The positive pressure SF6 gas environment inside the container effectively blocks harmful conditions such as dust and moisture from the outside, ensuring the factory-grade cleanliness and insulation integrity of the arc-extinguishing chamber upon delivery, laying a solid foundation for the long-term reliable operation of power grid equipment.

[0024] The overall container end face has the smallest cross-section, and its outer edge length is the shortest compared to other opening methods. By using the end face to enter and exit the arc-extinguishing chamber, the container opening is minimized, facilitating sealing and pressurization.

[0025] Among various cylindrical container cross-sectional shapes, the circular shape has the highest pressure resistance for the same wall thickness. However, depending on the shape and size of the arc extinguisher, different container shells such as square or elliptical with rounded corners can also be used. The higher the required gas pressure inside the container, the more appropriate it is to use a circular shape as the container cross-section.

[0026] To facilitate the closure and sealing of the container with the end cap, the end face of the cylindrical container is equipped with a flange of the same material welded on, and has a pressing surface for the sealing ring and specific fastening bolt holes.

[0027] The container end caps are made of the same material and are designed to fit the container dimensions, with pre-installed end cap flanges. A groove is cut into the inside of the end cap flange to embed a sealing ring. When sealed with the container body, the flanges on both sides are pressed together, deforming the sealing ring to ensure the container's airtightness. For lower inflation pressures, flat end caps can be used; for higher inflation pressures, spun-faced end caps are required. The end cap flanges are fitted with openings in the container body flanges and connected to the container body via bolts, with different numbers of bolts used as needed. The fastening bolts must be evenly spaced to ensure uniform stress around the flange when closed, resulting in consistent and adjustable deformation of the sealing ring.

[0028] This invention uses high-strength aluminum alloy as the container material primarily because of the relatively stringent cleanliness requirements of the arc-extinguishing chamber product. There are concerns that the corrosive properties of materials such as steel might not meet these requirements over long-term use. Of course, the use of non-corrosive materials such as stainless steel is not excluded. Meanwhile, all other components entering the container, including but not limited to: tracks, wheels, support brackets, and securing devices, also meet the same requirements and are made of aluminum alloy and stainless steel, respectively.

[0029] In the complete transport equipment, the airtight container is a modular design, bound to the steel rack using a flexible fastening device and bolted to the rack's uprights to form a whole. This allows for independent disassembly and replacement of the container according to the loading requirements of different arc-extinguishing chambers, reducing long-term maintenance costs and difficulties.

[0030] 2. Pulley unit The trolley unit includes a fixed track 10, a sliding wheel trolley 11, a track fixer 12, a wheel trolley fixer 13, and a sliding wheel trolley support frame 16. The track fixers 12 are provided on both sides of the inner wall of the airtight container 2, and the fixed track 10 is fixedly installed on the track fixers 12. The sliding wheel trolley support frame 16 is fixedly installed on the bearing bracket 3. The wheel trolley fixer 13 is installed on the sliding wheel trolley support frame 16 through wheel trolley fixer tightening bolts 17 and wheel trolley fixer anti-slip nuts 18. The sliding wheel trolley 11 is installed on the wheel trolley fixer 13. The sliding wheel trolley 11 slides along the fixed track to realize the insertion or extraction of the arc-extinguishing chamber in the airtight container.

[0031] The bearing bracket 3 is provided with a wheel buffer vibration isolation pad 19 between it and the sliding wheel support frame 16, and is fixedly connected by wheel support frame fixing bolts 20.

[0032] The nylon hub of the sliding wheel trolley 11 is fitted with a clearance to the fixed track 10. By controlling this clearance, the intensity of vibration excitation generated between the clearance and the track can be controlled.

[0033] A fixed track and a sliding trolley are integrated inside the airtight container 2. The track is fixed inside the container, and the trolley is fixed to the support bracket. The function of this system is to allow the support bracket to slide easily inside the container, ensuring smooth entry and exit of the arc-extinguishing chamber. Figure 1 As shown.

[0034] Thanks to the use of pulley units, the arc-extinguishing chamber support bracket can be completely removed from inside the container, allowing all hoisting, wrapping, loading, unloading, binding, and securing operations to be completed outside the container. This completely eliminates the cramped and inconvenient conditions for operators working inside the container, resolving safety concerns associated with working inside the container while maximizing operational efficiency and reducing workload.

[0035] By employing trolley units, the arc-extinguishing chamber is suspended in the center of the container by a support bracket, minimizing the volume of the airtight container. The overall suspension structure has been reinforced to fully meet the strength requirements and safety regulations of the power industry for the hoisting and transportation of heavy equipment. (See reference...) Figure 3 .

[0036] Fixed rails are installed on both sides of the inner wall of the container. They are made of high-strength aluminum alloy profiles and are precision machined by CNC to ensure overall straightness and dimensional accuracy. The surface is anodized to make the trolley run smoothly without jamming, greatly reducing pushing resistance. It has the characteristics of being lightweight, corrosion resistant and high precision, and is a key component to ensure the smooth operation of the wheel car.

[0037] Based on the arc-extinguishing chamber's weight of 800kg, the maximum acceleration coefficient during transport bumps could reach 5g. The overall static load-bearing capacity of the two tracks is approximately 4000kg, and 2000kg for each track. With a total track length of 6m and uniform stress, an average load-bearing capacity of 340kg per meter is required. According to simulation calculations of aluminum alloy profiles, when the profile span is 3m, the profile's load-bearing capacity within the acceptable deformation range reaches 750kg, meeting the arc-extinguishing chamber's load-bearing requirements.

[0038] To ensure the universality of different specifications and models of arc-extinguishing chambers, the internal track fixing strength is redundant, and multiple fixing points are adopted with a fixing interval of 1.2m.

[0039] Meanwhile, the arc-extinguishing chamber's load-bearing bracket is equipped with sliding wheel trolleys made of aluminum alloy and nylon hubs on both sides. According to simulation analysis, the load-bearing capacity of a single wheel trolley is 600 kg. Eight wheel trolleys are configured on both sides of the load-bearing bracket, with a total load-bearing capacity of 4800 kg, meeting the load-bearing requirements of the aforementioned maximum hazard conditions. The wheel trolley spacing is 1.5 m, satisfying the design requirement that the track profile span be within 3 m.

[0040] The pulley cart is connected to the support frame and the load-bearing bracket through the support frame. It can adjust its angle and posture within a certain range, thereby realizing the flexible adjustment of the load-bearing bracket with the fixed track when it is introduced into the container, reducing the positioning accuracy requirements during production and manufacturing.

[0041] After the support bracket slides into the container, wheel locks should be installed at both ends of the two side rails to prevent the support bracket from sliding during transportation.

[0042] 3. Load-bearing bracket The main body of the support bracket is made of custom stainless steel profiles. The width of the support bracket must meet the matching requirements between the wheel on the bracket and the track inside the container; its length must not only meet the load-bearing requirements of the arc-extinguishing chamber, but also match the internal length of the container to ensure the convenience of manual operation when entering and exiting the container.

[0043] Due to the excessive length and weight of the arc-extinguishing chamber, and the varying material shapes in different parts, the support bracket adopts a modular multi-point support structure to ensure that the arc-extinguishing chamber is evenly stressed and does not experience stress concentration due to its own weight.

[0044] 4. Load-bearing bracket support module Multiple sliding wheels are mounted on each side of the support bracket, forming part of the rail wheel system. A certain gap exists between the nylon hub of each sliding wheel and the fixed rail, with an average gap width designed to be 0.5mm. On the one hand, a certain gap is necessary to ensure smooth sliding between the hub and the rail; on the other hand, this gap cannot be too large, otherwise the hub will bounce and sway within the rail during transport, significantly affecting the acceleration response of the support bracket.

[0045] The support module 15 includes a metal bracket 21, a plastic pad 22, and a limiting ring 23. The metal bracket 21 has an open edge and is suspended and fixed on the support bracket 3. The center of the metal bracket 21 is arc-shaped to effectively support the arc-extinguishing chamber 1. The plastic pad 22 is provided between the metal bracket 21 and the arc-extinguishing chamber 1. The limiting ring 23 is provided on both sides of the metal bracket 21. Flexible straps are inserted into the limiting ring 23 to limit and bind the arc-extinguishing chamber 1.

[0046] The pulley cart is connected to the load-bearing bracket via a cart support frame. A buffer pad is added between the cart support frame and the load-bearing bracket to isolate the acceleration excitation generated by the nylon wheel hub bouncing within the track, thereby effectively reducing the acceleration response on the load-bearing bracket.

[0047] The support bracket for the arc-extinguishing chamber adopts a modular design; see [link / reference]. Figure 8The support module is customized according to the support and fixing position of the arc-extinguishing chamber, and mainly consists of several fixed components such as metal brackets, plastic pads, and limiting rings.

[0048] The metal bracket, made of stainless steel, provides the core support structure for the support module. On one hand, it is suspended from the main beam through edge openings and secured with bolts, forming a unified whole with the load-bearing bracket; on the other hand, its central section conforms to the shape of the arc-extinguishing chamber, forming an effective support structure. The bolt holes on the metal bracket have sufficient slack to facilitate position adjustment during arc-extinguishing chamber loading.

[0049] The plastic gasket, made of polyurethane substrate, features an embedded conformal design. This provides a degree of elasticity when the arc-extinguishing chamber contacts the support module, effectively protecting the components and their encasing plastic film from scratches and wear.

[0050] The limiting ring, made of stainless steel, is used to pass through the flexible strap to control the tilt angle of the strap when the system is fixed in position, so as to avoid interference with the arc extinguishing chamber itself and other devices.

[0051] The support module adopts a highly modular design, and can be disassembled and replaced to achieve compatibility and adaptation between the load-bearing bracket and various models of arc-extinguishing chambers.

[0052] Each support module of the entire load-bearing bracket is equipped with a flexible fastening device, which can tightly fasten the arc-extinguishing chamber product to the product bracket, achieving a three-dimensional secure lock and forming a stable whole, ensuring stable loading under any road conditions.

[0053] Overall, the vibration isolation and buffer protection design of this patent for the entire load-bearing bracket meets the requirements of GB / T1094.1-2023 standard, namely, that the acceleration response in all directions does not exceed 3g under normal transportation and handling conditions.

[0054] 4. Tool and material rack The airtight container 2 is surrounded by a tool rack 24. The tool rack 24 is provided with stacking bowl feet 25 at the top and bottom. The tool rack 24 is provided with positioning inclined supports 26. The tool rack 24 is provided with casters 27 at the bottom.

[0055] By incorporating a steel rack on the outside of the airtight container, the container gains stacking capacity for storage and transportation, maximizing space savings and improving transport efficiency. Simultaneously, the steel rack is equipped with detachable caster modules, allowing for smooth pushing and rotation without affecting stacking, significantly reducing labor intensity during transfer and handling, and minimizing reliance on lifting equipment.

[0056] The steel material rack uses embedded stacking cup feet to ensure stable stacking. It also provides ample redundancy and guidance, facilitating accurate handling during hoisting.

[0057] The cylindrical airtight container is supported by a three-point support structure, and the adjustable support structure meets the support angle control requirements of the IMO / ILO / UNECE Code of Practice for Packing of Cargo Transport Units.

[0058] Equipped with detachable rack casters, it can be smoothly pushed or rotated during daily use, reducing the need for lifting equipment during operations. When stacking and transporting materials, the bottom rack casters can be easily removed, ensuring safety during storage and transportation.

[0059] 5. Liftable tooling transfer cart The transfer tooling 4 is located on both sides below the bearing bracket 3. The transfer tooling 4 includes a transfer tooling frame 28, a bearing bracket support 29, a scissor lift mechanism 30, and a hydraulic jack 31. Casters are provided at the four corners of the transfer tooling frame 28. The bearing bracket support 29, the scissor lift mechanism 30, and the hydraulic jack 31 are fixedly installed on the transfer tooling frame 28. The bearing bracket 3 is installed on the bearing bracket support 29. The scissor lift mechanism controls the raising and lowering of the bearing bracket support 29 through the hydraulic jack 31. When raised, the sliding wheel 11 on the bearing bracket 3 smoothly connects with the fixed track of the airtight container to facilitate the entry and exit of the arc-extinguishing chamber from the container. After lowering, the transfer of the arc-extinguishing chamber is completed.

[0060] Tooling transfer carts are specially designed equipment to assist in the movement of load-bearing brackets into and out of airtight containers. When moving horizontally, using a transfer cart to push or pull the load-bearing brackets into or out of airtight containers is even more convenient and labor-saving than using hoisting equipment.

[0061] The tooling transfer vehicle is made of high-strength carbon steel and is connected to the load-bearing bracket through positioning supports. It uses a scissor lift structure to achieve the lifting function, and a split hydraulic jack (or mechanical screw jack) is used for lifting power control. It is equipped with swivel casters to complete horizontal movement.

[0062] When the tooling transfer cart is raised, it allows the sliding wheels on the support bracket to smoothly connect with the container track, facilitating the entry and exit of the arc-extinguishing chamber. When lowered, it reduces the center of gravity of the arc-extinguishing chamber, improving the stability of movement and handling. When the tooling transfer cart is lowered to its lowest point, the effective height of the highest point of the arc-extinguishing chamber from the ground is approximately 520mm, which is lower than the minimum height limit of 560mm for power transmission and substation pipelines, meeting the operational requirements of the engineering site.

[0063] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A device for transporting and transferring arc-extinguishing chambers, characterized in that: The system includes an airtight container (2), a support bracket (3), and a transfer cart (4). The airtight container (2) can load an arc-extinguishing chamber (1) under positive pressure filled with SF6 gas. The support bracket (3) is used to load and fix the arc-extinguishing chamber (1). The support bracket (3) allows the arc-extinguishing chamber (1) to smoothly enter and exit the airtight container (2) through a trolley unit. The transfer cart (4) works in conjunction with the support bracket (3). When the transfer cart (4) is raised, it can directly lift the support bracket (3) pulled out / sent into the airtight container (2). After lowering, the transfer of the arc-extinguishing chamber (1) is completed.

2. The device for transporting and transferring arc-extinguishing chambers according to claim 1, characterized in that: The airtight container (2) is a cylindrical container. The airtight container (2) has end flanges (5) on both ends. The end flanges (5) are connected to the end caps (6) by fastening bolts (8). The end caps (6) are provided with inflation nozzles (9) for filling and releasing SF6 gas. A sealing ring (7) is provided between the end flanges (5) and the end caps (6). The airtight container (2) is made of high-strength aluminum alloy material.

3. The device for transporting and transferring arc-extinguishing chambers according to claim 1, characterized in that: The airtight container (2) is equipped with the trolley unit, which includes a fixed rail (10), a sliding wheel (11), a rail fixer (12), a wheel fixer (13), and a sliding wheel support frame (16). The rail fixers (12) are provided on both sides of the inner wall of the airtight container (2), and the fixed rail (10) is fixedly installed on the rail fixer (12). The sliding wheel support frame (16) is fixedly installed on the bearing bracket (3). The wheel fixer (13) is installed on the sliding wheel support frame (16) through the wheel fixer tightening bolt (17) and the wheel fixer anti-slip nut (18). The sliding wheel (11) is installed on the wheel fixer (13). The sliding wheel (11) slides along the fixed rail to realize the insertion or extraction of the arc-extinguishing chamber in the airtight container.

4. The device for transporting and transferring arc-extinguishing chambers according to claim 3, characterized in that: A wheel buffer and vibration isolation pad (19) is provided between the bearing bracket (3) and the sliding wheel support frame (16) and is fixedly connected by the wheel support frame fixing bolts (20).

5. The device for transporting and transferring arc-extinguishing chambers according to claim 3, characterized in that: The nylon hub of the sliding wheel vehicle (11) is clearance-fitted with the fixed track (10).

6. The device for transporting and transferring arc-extinguishing chambers according to claim 1, characterized in that: The support bracket (3) is provided with a support bracket support module (15). The support bracket support module (15) includes a metal bracket (21), a plastic pad (22), and a limiting ring (23). The edge of the metal bracket (21) is open and suspended and fixed on the support bracket (3). The center of the metal bracket (21) is arc-shaped to effectively support the arc-extinguishing chamber (1). The plastic pad (22) is provided between the metal bracket (21) and the arc-extinguishing chamber (1). The limiting ring (23) is provided on both sides of the metal bracket (21). A flexible strap is inserted into the limiting ring (23) to limit and bind the arc-extinguishing chamber (1).

7. The device for transporting and transferring arc-extinguishing chambers according to claim 1, characterized in that: The transfer tooling cart (4) is located on both sides below the bearing bracket (3). The transfer tooling cart (4) includes a transfer tooling cart frame (28), a bearing bracket support (29), a scissor lift mechanism (30), and a hydraulic jack (31). Casters are provided at the four corners of the transfer tooling cart frame (28). The bearing bracket support (29), the scissor lift mechanism (30), and the hydraulic jack (31) are fixedly installed on the transfer tooling cart frame (28). The bearing bracket (3) is installed on the bearing bracket support (29). The scissor lift mechanism controls the lifting and lowering of the bearing bracket support (29) through the hydraulic jack (31). When raised, the sliding wheel (11) on the bearing bracket (3) smoothly connects with the fixed track of the airtight container to facilitate the entry and exit of the arc extinguishing chamber from the container. After descent, the arc-extinguishing chamber is transferred.

8. The device for transporting and transferring arc-extinguishing chambers according to claim 1, characterized in that: The airtight container (2) is surrounded by a tool rack (24), the top and bottom of the tool rack (24) are provided with stacking bowl feet (25), the tool rack (24) is provided with a positioning inclined support (26), and the bottom of the tool rack (24) is provided with casters (27).

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